Internal Forces
Friction
Renewable/Nonrenewable
Newton
100
What is this internal force?
Tension
100
What are the three types of friction?
static, rolling, and sliding
100
What is a type of non-renewable energy?
Coal, natural gas, oil
100
What is Newton's third law?
Every action has an equal and opposite reaction
200
What is this force? 
Schear
200
What would happen if you rolled a ball and friction didn't exist?
The ball would never stop moving
200
What is a type of renewable energy?
Geothermal, wind, solar, etc
300
What force would be two people high fiving?
Compression
300
What is an advantage of non-renewable energy?
Easily accessible, readily available, reliable
400
What force is happening when you snap a twig?
Bending
400
What is an advantage of renewable energy?
It is good for the environment
500
What force is happening when you unscrew a cap?
torsion